Tech9
Part of the Furniture
just allowing it to not slow down your regular internet when VPN is in use
Before that fix nothing could exceed the WAN-LAN limited throughput including the WireGuard server/client itself.
It has newer architecture and 4 cores instead of 2.
OpenVPN uses single core. Expect similar to your routers performance. AX86U has advantage with >1 OpenVPN connections.